7.21.4 Comparison functions

• 7.21.4.1 The memcmp function
• 7.21.4.2 The strcmp function
• 7.21.4.3 The strcoll function
• 7.21.4.4 The strncmp function
• 7.21.4.5 The strxfrm function

1

The sign of a nonzero value returned by the comparison functions memcmp, strcmp, and strncmp is determined by the sign of the difference between the values of the first pair of characters (both interpreted as unsigned char) that differ in the objects being compared.